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Piaget - Piaget Yellow Gold Bamboo Jade Watch, 1970s - The Keystone Watches

Piaget Yellow Gold Bamboo Jade Watch, 1970s

Piaget Yellow Gold Bamboo Jade Watch, 1970s

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Cartier - Cartier Yellow Gold Tank Ceinture Watch - The Keystone Watches

Cartier Yellow Gold Tank Ceinture Watch

Cartier Yellow Gold Tank Ceinture Watch

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Richard Mille - Richard Mille Skeletonized Paris Boutique RM10 Watch, Limited to 10 Pieces - The Keystone Watches

Richard Mille Skeletonized Paris Boutique RM10 Watch, Limited to 10 Pieces

Richard Mille Skeletonized Paris Boutique RM10 Watch, Limited to 10 Pieces

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Daniel Roth - Daniel Roth Yellow Gold Regulateur Tourbillon Watch - The Keystone Watches

Daniel Roth Yellow Gold Regulateur Tourbillon Watch

Daniel Roth Yellow Gold Regulateur Tourbillon Watch

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Piaget - Piaget Yellow Gold Diamond & Onyx Watch - The Keystone Watches

Piaget Yellow Gold Diamond & Onyx Watch

Piaget Yellow Gold Diamond & Onyx Watch

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Cartier - Cartier Yellow Gold Asymmetrical Tank Watch, Piece Unique - The Keystone Watches

Cartier Yellow Gold Asymmetrical Tank Watch, Piece Unique

Cartier Yellow Gold Asymmetrical Tank Watch, Piece Unique

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Cartier - Cartier White Gold Tank Manual-Wind Watch - The Keystone Watches

Cartier White Gold Tank Manual-Wind Watch

Cartier White Gold Tank Manual-Wind Watch

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A. Lange & Sohne - A. Lange & Sohne White Gold Cabaret Soiree Diamond Watch, Ref. 868.032 - The Keystone Watches

A. Lange & Sohne White Gold Cabaret Soiree Diamond Watch, Ref. 868.032

A. Lange & Sohne White Gold Cabaret Soiree Diamond Watch, Ref. 868.032

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Jaeger LeCoultre - Jaeger LeCoultre Platinum Master Control Minute Repeater Baguette Diamond Watch - The Keystone Watches

Jaeger LeCoultre Platinum Master Control Minute Repeater Baguette Diamond Watch

Jaeger LeCoultre Platinum Master Control Minute Repeater Baguette Diamond Watch

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Piaget - Piaget White Gold Diamond & Onyx Watch - The Keystone Watches

Piaget White Gold Diamond & Onyx Watch

Piaget White Gold Diamond & Onyx Watch

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FP Journe - F.P. Journe Platinum Octa Reserve de Marche Early Production with Original Box and Papers - The Keystone Watches

F.P. Journe Platinum Octa Reserve de Marche Early Production with Original Box and Papers

F.P. Journe Platinum Octa Reserve de Marche Early Production with Original Box and Papers

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Piaget - Piaget White Gold Onyx & Baguette Diamond Watch - The Keystone Watches

Piaget White Gold Onyx & Baguette Diamond Watch

Piaget White Gold Onyx & Baguette Diamond Watch

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Piaget - Piaget Yellow Gold Diamond & Lapis Watch - The Keystone Watches

Piaget Yellow Gold Diamond & Lapis Watch

Piaget Yellow Gold Diamond & Lapis Watch

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Cartier - Cartier Yellow Gold Unusual Bracelet Watch - The Keystone Watches

Cartier Yellow Gold Unusual Bracelet Watch

Cartier Yellow Gold Unusual Bracelet Watch

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A. Lange & Sohne - A Lange & Sohne White Gold 1815 Chronograph Watch - The Keystone Watches

A Lange & Sohne White Gold 1815 Chronograph Watch

A Lange & Sohne White Gold 1815 Chronograph Watch

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Cartier - Cartier Yellow Gold Asymmetrical Tank Watch, with Original Box and Certificate - The Keystone Watches

Cartier Yellow Gold Asymmetrical Tank Watch, with Original Box and Certificate

Cartier Yellow Gold Asymmetrical Tank Watch, with Original Box and Certificate

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Universal Geneve - Universal Geneve Polerouter Date Tropical Watch - The Keystone Watches

Universal Geneve Polerouter Date Tropical Watch

Universal Geneve Polerouter Date Tropical Watch

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Cartier - Cartier White Gold Rotonde de Cartier Flying Tourbillon Watch - The Keystone Watches

Cartier White Gold Rotonde de Cartier Flying Tourbillon Watch

Cartier White Gold Rotonde de Cartier Flying Tourbillon Watch

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Ressence - Ressence Type 3 Automatic Watch - The Keystone Watches

Ressence Type 3 Automatic Watch

Ressence Type 3 Automatic Watch

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Ulysse Nardin - Ulysse Nardin Platinum Diamond Heart Freak Watch - The Keystone Watches

Ulysse Nardin Platinum Diamond Heart Freak Watch

Ulysse Nardin Platinum Diamond Heart Freak Watch

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FP Journe - F.P. Journe Repetition Souveraine Minute Repeater Watch - The Keystone Watches

F.P. Journe Repetition Souveraine Minute Repeater Watch

F.P. Journe Repetition Souveraine Minute Repeater Watch

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A. Lange & Sohne - A. Lange & Sohne Saxonia Annual Calendar Watch, Ref. 330.026 - The Keystone Watches

A. Lange & Sohne Saxonia Annual Calendar Watch, Ref. 330.026

A. Lange & Sohne Saxonia Annual Calendar Watch, Ref. 330.026

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Piaget - Piaget White Gold Diamond Lapis Onyx Watch - The Keystone Watches

Piaget White Gold Diamond Lapis Onyx Watch

Piaget White Gold Diamond Lapis Onyx Watch

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A. Lange & Sohne - A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029 - The Keystone Watches

A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029

A. Lange & Sohne White Gold Lange 1 Luminous Watch Ref. 101.029

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Universal Geneve - Universal Geneve Yellow Gold Skeletonized Automatic Watch - The Keystone Watches

Universal Geneve Yellow Gold Skeletonized Automatic Watch

Universal Geneve Yellow Gold Skeletonized Automatic Watch

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Laurent Ferrier - Laurent Ferrier Rose Gold Galet Square Watch - The Keystone Watches

Laurent Ferrier Rose Gold Galet Square Watch

Laurent Ferrier Rose Gold Galet Square Watch

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Cartier - Cartier Yellow Gold Tank Bamboo Coussin Watch - The Keystone Watches

Cartier Yellow Gold Tank Bamboo Coussin Watch

Cartier Yellow Gold Tank Bamboo Coussin Watch

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Piaget - Piaget Yellow Gold Manchette Tigerseye Watch - The Keystone Watches

Piaget Yellow Gold Manchette Tigerseye Watch

Piaget Yellow Gold Manchette Tigerseye Watch

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Cartier White Gold Tortue Minute Repeater Watch

Cartier White Gold Tortue Minute Repeater Watch

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A. Lange & Sohne - A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026 - The Keystone Watches

A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026

A. Lange & Sohne White Gold Langematik Perpetual Watch Ref. 310.026

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A. Lange & Sohne - A. Lange & Sohne Platinum Cabaret Tourbillon Watch - The Keystone Watches

A. Lange & Sohne Platinum Cabaret Tourbillon Watch

A. Lange & Sohne Platinum Cabaret Tourbillon Watch

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Richard Mille - Richard Mille Carbon Yas Marina Circuit Watch Ref. RM055 - The Keystone Watches

Richard Mille Carbon Yas Marina Circuit Watch Ref. RM055

Richard Mille Carbon Yas Marina Circuit Watch Ref. RM055

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FP Journe - F.P. Journe Steel End of 38mm Five Watch Set from 2015 - The Keystone Watches

F.P. Journe Steel End of 38mm Five Watch Set from 2015

F.P. Journe Steel End of 38mm Five Watch Set from 2015

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Piaget - Piaget Yellow Gold Skeletonized Lapis Lazuli Chronograph Watch - The Keystone Watches

Piaget Yellow Gold Skeletonized Lapis Lazuli Chronograph Watch

Piaget Yellow Gold Skeletonized Lapis Lazuli Chronograph Watch

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Cartier - Cartier Platinum Santos Dumont Watch, Ref. 1575 - The Keystone Watches

Cartier Platinum Santos Dumont Watch, Ref. 1575

Cartier Platinum Santos Dumont Watch, Ref. 1575

Sold Out

 
Richard Mille - Richard Mille Extra Flat Automatic Skeleton Green Van Niekerk Watch Ref. RM67-02 - The Keystone Watches

Richard Mille Extra Flat Automatic Skeleton Green Van Niekerk Watch Ref. RM67-02

Richard Mille Extra Flat Automatic Skeleton Green Van Niekerk Watch Ref. RM67-02

Sold Out

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New Arrivals Preview
 
Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

Gerald Genta Fantasy Retro M.10 MOP Mickey Mouse for Hong Kong Disney Watch (New Arrival)

$23,750 USD
 
Vacheron Constantin - Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL) - The Keystone Watches

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

Vacheron Constantin Yellow Gold Grand Complication Pocket Watch (NEW ARRIVAL)

$155,000 USD
 
Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

Cartier Yellow Gold Tank Obus Ref. 1630 with Black Enamel (New Arrival)

$14,500 USD
 
Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

Patek Philippe Steel Automatic UFO Ref. 3580 (New Arrival)

$13,250 USD
 
Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

Patek Philiipe Rose Gold Calatrava Watch Ref. 3796 (New Arrival)

$16,500 USD
 

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

Piaget White Gold Altiplano Ref. 90122 with Diamonds and Sapphires (New Arrival)

$17,750 USD
Shop all New Arrivals Preview

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Guarantee

Our watches go through a rigorous authentication process in which seasoned experts examine and evaluate the watches. These experts have decades of experience and have authenticated thousands of watches in their lifetime. We guarantee every piece of the watches we offer are 100% authentic. 

CONTACT US

You can reach us by emailing hello@thekeystone.com or call 213-632-9061

We are based in West Hollywood, CA. Please contact us for appointments to view a watch in person. 

We are not authorized sellers of the brands listed on our site. We sell vintage and pre-owned product.

Stay in touch.

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